Homebrew PCBs

I don't know specifically about the HP 400, but all the desktop HP
inkjet printers I've seen pull the paper in the front from that bottom
tray you can see, and wrap it 360 back out the front of the printer.

Aha! Always use the resources available. HP still has the user manual
in PDF format.

http://www.hp.com/cposupport/manindex/dj400_eng_man.html

Looks like you do have the option to feed paper through the back and
have it come out the front. No idea just how straight the path is, though.

The HP 310, 320, 330, and 340 Deskjet (parallel) and Deskwriter
(serial) laptop printers have a very short straight through paper path
but tend to cost a bit more because they are very small and portable.
I have several of them myself, intending on testing one of them this way.

I'm sorry to hear about the mishap with your printer.

Steve Greenfield

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> has anyone this model at home?
> may it somebody inspect for pcb printing possibilities?
-snip-
> if anyone has it, please have a look at the paper transport path,
how it is driven, if it is possible to 
> feed flat materialy through, which thickness is possible (maybe with
moving some axes).
-snip-
> how is the paper transported? are the rollers which apply the
momentum under the paper?

> thanks
> stefan
> 
> image would be here if anyone isn'z sure if he knows this model:
> http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=3416464904